Keil is derived from Germanic origins. The name is of the meaning clumsy person. The name Keiler is a variant of Keil. Keil is rarely used as a baby name for boys.
Definition of flapjack for English Language Learners. : a thick, sweet cake made of oatmeal usually with molasses or honey.
A flapper is a rubber mechanism in your toilet tank that is the moving part of the flush valve, sealing water into the tank and allowing water to exit the tank when you flush.